linux-kernel - Re: 2.6.29 regression? Bonding tied to IPV6 in 29-rc5

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Message-Id: <200902172117.22671.arvidjaar@mail.ru>
Date:	Tue, 17 Feb 2009 21:17:14 +0300
From:	Andrey Borzenkov <arvidjaar@...l.ru>
To:	"Rafael J. Wysocki" <rjw@...k.pl>, brian.haley@...com
Cc:	netdev@...r.kernel.org, bonding-devel@...ts.sourceforge.net,
	"J.A. Magallón" <jamagallon@....com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.29 regression? Bonding tied to IPV6 in 29-rc5

On 17 of February 2009 20:01:38 Andrey Borzenkov wrote:
> Forward to bonding and netdev
>
> On 17 of February 2009 11:52:32 J.A. Magallón wrote:
> > Hi all...
> >
> > Don't know if this is specific for -rc5, I have jumped from 28.4 to
> > 29-rc5. In this latest kernel, I can not install 'bonding' module
> > if 'ipv6' is disabled to load via modprobe.conf:
> >
> > install ipv6 /bin/true
> >
> > Trying bonding gives this dmesg:
> >
> > bonding: Unknown symbol ndisc_build_skb
> > bonding: Unknown symbol in6_dev_finish_destroy
> > bonding: Unknown symbol ndisc_send_skb
> > bonding: Unknown symbol unregister_inet6addr_notifier
> > bonding: Unknown symbol register_inet6addr_notifier
> >
> > Commenting the line in modprobe.conf makes things smooth again.
> > We can not disable ipv6 anymore ?
>
> If IPv6 is disable in kernel config bonding loads. But I think it is
> regression, it should be possible to disable IPv6 if not required.

This hard dependency was apparently introduced by this commit:

commit 305d552accae6afb859c493ebc7d98ca3371dae2
Author: Brian Haley <brian.haley@...com>
Date:   Tue Nov 4 17:51:14 2008 -0800

    bonding: send IPv6 neighbor advertisement on failover


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